Panicum wiehei Renvoize

Annual; culms 30–100 cm. or more long, decumbent or scrambling, rooting at the lower nodes.. Leaf-blades lanceolate to narrowly lanceolate, 6–16 cm. long, 8–18 mm. wide, cordate or straight at the base, herbaceous or membranous, flat, glabrous or pilose, scabrid on the margins, acuminate.. Panicle broadly ovate, 7–15 cm. long, moderately to much branched.. Spikelets ovate, 2–2.5 mm. long, glabrous or sparsely pubescent; lower glume ovate, 1/4–1/3 the length of the spikelet, 0–1-nerved, obtuse or acute; upper glume ovate, antrorsely scaberulous on the back, 5-nerved; lower lemma similar, ♂, its palea well developed; upper lemma pale, shining.